Tewksbury Township municipal offices are located at 169 Old Turnpike Road, Califon NJ 07830; phone: 908-439-0022.
First organized around 1755, Tewksbury is one of New Jersey's original 104 townships incorporated in 1798. The earliest settlers were English, followed by a large number of Germans beginning about 1749. Zion Lutheran Church in Oldwick is the oldest German parish in New Jersey. [www.county.hunterdon.nj.us, accessed June, 2013]